Summary
They studied special rocks in a place named Karbi Anglong to learn this.
Key Points
3 points1
The study looked at old rocks from a time called the middle part of the Eocene period.
2
These rocks showed signs that water once covered the land.
3
The research was done by scientists from Nagaland University.
New Words to Learn
6 wordsmiddle-Eocene
a time about 40 million years ago, long before people
sedimentary rock
rock made from tiny pieces that settled together like sand
formation
a layer of rocks that was created in one place
Karbi Anglong district
a region in the state of Assam in India
probe
to investigate carefully
conclusion
the answer or result the scientists found
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